+ /**
+ * @brief Retrieves the text's model.
+ *
+ * @return A pointer to the text's model.
+ */
+ const ModelInterface* const GetTextModel() const;
+
+ /**
+ * @brief Used to get scrolled distance by user input
+ *
+ * @return Distance from last scroll offset to new scroll offset
+ */
+ float GetScrollAmountByUserInput();
+
+ /**
+ * @brief Get latest scroll amount, control size and layout size
+ *
+ * This method is used to get information of control's scroll
+ * @param[out] scrollPosition The current scrolled position
+ * @param[out] controlHeight The size of a UI control
+ * @param[out] layoutHeight The size of a bounding box to layout text within.
+ *
+ * @return Whether the text scroll position is changed or not after last update.
+ */
+ bool GetTextScrollInfo( float& scrollPosition, float& controlHeight, float& layoutHeight );
+